Miley Cyrus' tongue has been the topic of a lot of conversations, and some 'not so nice" comments from her peers. It seems to be her trademark these days, so how come? Why can't she keep it inside her mouth?

She claims it is nerves that causes her to do it. Call it a nervous tick if you would like.

She was chosen as one of the most fascinating people of 2013, and in her interview with Barbara Walters she confessed, "I get embarrassed to take pictures. That's actually the truth. I'm so embarrassed because people are taking pictures of me and I don't know how to smile, and just be awkward, so I stick my tongue out, because I don't know what else to do."

So, it's really something she does when the cameras come out, to help her feel more comfortable in the public spotlight. It sound like her own personal therapy, but it sure is getting her in the news and conversations!